Mem0's authenticated MCP is integrated via MiniMax's Connector (like EverMe),
giving a one-click Connect UX instead of a manual API key. Uses the MiniMax
.minimax-plugin/ submission format with apps:[mem0.app.json].
mem0.app.json provider is a placeholder until MiniMax completes Connector
integration and assigns one; mem0's OAuth MCP is already fully compliant
(streamable-http, Auth Code + PKCE S256, refresh tokens, DCR).
